<template>
    <div>
        <nav-bar>
            <div slot="left" class="back" @click="backClick">
        <img src="~assets/img/common/back.svg" alt="">
      </div>
        <div slot="center" class="title">
            <div v-for="(item,index) in titles"
            class="title-item"
            :class="{active:index === currentIndex}"
            @click="titleClick(index)">{{item}}
            </div>
        </div>
        </nav-bar>
    </div>
</template>
<script>
import NavBar from 'components/common/navbar/NavBar'

export default {
    name:'DetailsNavBar',
    data(){
        return {
            titles:['商品','参数','评论','推广'],
            currentIndex: 0
        }
    },
    components:{
        NavBar
    },
    methods:{
        titleClick(index){
            this.currentIndex = index
            this.$emit('titleClick',index)
        },
         backClick(){
        this.$router.back()
      }
    }
}
</script>
<style>
.title{
    display: flex;
    font-size: 13px;
}
.title-item{
    flex:1;
}
.active{
     color:  var(--color-high-text);
  }
 .back img {
    margin-top: 12px;
    /* width: 44px; */
  }
  .back{
      height: 43px;
  }
</style>